Neutrinoless double beta decay in a supersymmetric left-right model
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arXiv
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| Natura: | Preprint |
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2025
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| _version_ | 1866909832912568320 |
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| author | Banerjee, Vivek Mishra, Sasmita |
| author_facet | Banerjee, Vivek Mishra, Sasmita |
| contents | Neutrinoless double beta ($0νββ$) decay, an important low-energy process, serves not only as a potential test of the Majorana nature of neutrinos, but also as a sensitive probe for new physics beyond the Standard Model. In this study, the supersymmetric left-right model is explored to investigate its impact on $0νββ$ decay. Although the process takes place at low energies as compared to the electroweak scale, it carries the potential to provide indirect hints about the parity-breaking scale $\text{M}_R$. In this work, we formulate the decay amplitude using an effective field theory approach by separating long- and short-range contributions, each expressed in terms of dimensionless particle physics parameters and nuclear matrix elements. The analysis shows that the $\text{M}_R$ must lie above $1$ TeV, and future experiments may push it beyond $4 - 5$ TeV region. Another important outcome of this work is the role played by the tentative dark matter candidates, the lightest neutralino and sneutrino, which contribute significantly to the half-life of $0νββ$ decay. This suggests that if any supersymmetric particle is detected in future experiments, dark matter candidates will gain a permanent position in these extensions of the Standard Model. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_08090 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Neutrinoless double beta decay in a supersymmetric left-right model Banerjee, Vivek Mishra, Sasmita High Energy Physics - Phenomenology Neutrinoless double beta ($0νββ$) decay, an important low-energy process, serves not only as a potential test of the Majorana nature of neutrinos, but also as a sensitive probe for new physics beyond the Standard Model. In this study, the supersymmetric left-right model is explored to investigate its impact on $0νββ$ decay. Although the process takes place at low energies as compared to the electroweak scale, it carries the potential to provide indirect hints about the parity-breaking scale $\text{M}_R$. In this work, we formulate the decay amplitude using an effective field theory approach by separating long- and short-range contributions, each expressed in terms of dimensionless particle physics parameters and nuclear matrix elements. The analysis shows that the $\text{M}_R$ must lie above $1$ TeV, and future experiments may push it beyond $4 - 5$ TeV region. Another important outcome of this work is the role played by the tentative dark matter candidates, the lightest neutralino and sneutrino, which contribute significantly to the half-life of $0νββ$ decay. This suggests that if any supersymmetric particle is detected in future experiments, dark matter candidates will gain a permanent position in these extensions of the Standard Model. |
| title | Neutrinoless double beta decay in a supersymmetric left-right model |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2510.08090 |